Rotary web-printing press



Jan. 28, 1930. H. M. BARBER ROTARY WEB PRINTING PRESS Filed Nov. 8. 19282 Sheets-Sheet 1 INVENTOR ATTORNEYS Jan. 28, 1930. H. M. BARBER ROTARYWEB PRINTING PRESS Filed Nov. 8. 1928 2 Sheets-Sheet 2 INVENTOR 7%M 72 1ATTORNEYS Patented Jan. 28, 1930 UNITED sTATEs PATENT OFFICE HOWARD M.BARBER, OF PAWCATUOE, CONNECTICUT, ASSIGNOR TO 0. COTTRELL & SONSCOMPANY, OF WESTERLY, RHODE ISLAND, A CORPORATION OF DELAWARE ROTARYWEB-PRINTING PRESS Application filed November 8, 1928. Serial No.317,990.

The object of my present invention is to provide a multi-color rotaryweb printing press which is especially designed for so called bagprinting; whereby the printed web which may be of thin or loosely wovenmaterial, such as burlap, will have the successive printings thereonspaced at different distances apart according to the length of thesheets to be cut from the web.

My invention comprises an impression cylinder of a predetermineddiameter and coacting form cylinders of larger or smallercorresponding-diameters, which form cylinders I will hereinafterdesignate as change form cylinders as they may be of any desiredcorresponding diameters within a reasonable range and not necessarilysub-multiples of the diameter of the impression cylinder, to suit bagblanks or sheets of different lengths; the change form cylinders of onediameter for one predetermined length of sheet being readily substitutedfor change form cylinders of another diameter for another predeterminedlength of sheet, without rebuilding the press.

My invention further comprises means whereby the form cylinder inkingmechanisms may be readily adjusted to coact with chan e form cylindersof different correspon mg diameters, said inking mechanisms beingmovable in a horizontal plane toward and away from their respectivechange form cylinders, the position of one of the inking mechanismsbeing rotatively adjustable to bring it into the proper coactiveposition wit-h respect to its change form cylinder.

My invention more particularly includes a three color rotary webprinting press having a sectional stand for carrying the inkingmechanisms, said stand comprising a main section carrying two of theinking mechanisms and an auxiliary section pivoted to the main sectionand carrying the third inking mechanism. 7

A practical embodiment of my invention is represented in theaccompanying drawings, applied to a three color rotary web printingress.

P Fig. 1 represents a detail'side elevation illustrating the inkingmechanisms adjusted for coaction with relatively large change I formcylinders.

Fig. 2 represents a similar View illustrating the inking mechanismsadjusted for coaction of corresponding small diameters are repre-,

sented in Fig. 2 as coacting with the impression cylinder 3. Thesechange form cylinders are driven from the impression cylinder and thecircumference of each form cylinder is twice the length of the sheetdesigned to be cut from the web. Radially adjustable bearings 10, 11 and12, spaced equal distances apart, are provided at each side of the mainframe 1 for mounting the shafts 13, 14 and 15 of the relatively largechange form cylinders or the shafts 16, 17 and 18 of the group of changeform cylinders may be adjusted for coaction with the impressioncylinder. Only two sets of change form, cylinders are represented hereinbut it is to be understood that these groups of changes form cylindersmay be of any desired corresponding diameters not necessarilysubmultiples of the impression cylinder, so that successive printings onthe web may be spaced any desired distance apart, within reasonablelimits, to suit sheets of different lengths to be cut from the web.

In the three color rotary web printing press illustrated, the radiallyadjustable bearings 10 and 11 are arranged at equal distances below andabove a horizontal plane passing through the axis of the shaft 2 of theimpression cylinder while the radially adjustable bearings 12 arearranged above the bearings 11.

Because of the provision of change form cylinders of differentcorresponding diameters I have found it necessary, to provide meanswhereby the inking mechanisms for the several cylinders be not onlyadjustable as a whole in a horizontal plane toward and away from theirrespective change form cylinders but also that means must be providedfor moving the upper inking mechanism independently of the other inkingmechanisms toward and away from its change form cylinder, in the presentinstance by a rotative movement.

The inking mechanism stand comprises a mainsection 19 and an auxiliarysection 20 pivoted at 21 thereto to swing vertically into ifferentrotative positions. The auxiliary stand-section 20 may be locked in itsdiffer ent rotatively adjusted positions by a lock bolt 22 which passesthrough an elongated slot 23 concentric with the axis of the hinge 21.The main stand section 19 carries two of the inking mechanisms denotedas a whole by 24 and 25 and the auxiliary stand section carries a thirdinking mechanism denoted as a whole by 26.

The inking mechanism 24 is shown as provided with two change formcylinder inking rollers 27, the inking mechanism 25 with two change formcylinder inking rollers 28 and the inking mechanism 26 with two changeform cylinder inking rollers 29.

The inking mechanism stand may be locked in its adjusted position withrespect to the change form cylinders on each side of the main frame by alock bolt 30 which passes through a horizontal slot 31in a bar 32 projecting from the main frame 1.

The sectional inking mechanism stand may be moved in a horizontal planetoward and away from the change form cylinders in the usual manner bythe hand wheel 33, carried by the main stand section 19. The means whichI have shown for rotatively adjusting the position of the auxiliarystand section 20 with respect to the main stand section 19 is a crankhandle 34, the shaft 35 of which is mounted in the main stand section 19and has a worm connection 36, 37 at each side of the main frame with anut 38 engaging a screw 39 pivoted at 40 to the auxiliary stand section20.

I n 0p'emtion.The inking mechanism stand is moved in a horizontal planetoward the change form cylinders until the inking rollers 27 and 28 ofthe inking mechanisms '24 and 25 are brought into contact with theirchange form cylinders. The lock bolt 22 is then loosened and the crankhandle 33 is manipulated to swing the auxiliary stand section 20, tobring the inking rollers 29 into contact with their change formcylinder. The bolt 22 is then tightened to. lock the auxiliary standsection 20 in its rotatively adjusted position. The inking mechanismstand as a whole may then be locked in its adjusted position bytightening the lock bolt 30.

From the above description it will be seen that I am enabled to providea very simple means for adjusting the positions of the several inkingrollers with respect to their change form cylinders ofvariouscorresponding diameters to space successive printings at diflerentdistances aparton the web according to the length of the sheets to beout therefrom.

It is evident that various changes may be resorted to in the Iconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention, hence I do notintend to be limited to the particular embodiment herein shown anddescribed, but

What I claim is:

1. In a multi-color rotary web printing press, an impression cylinder,change form cylinders, adjustable bearings therefor, and change formcylinder inking mechanisms movable in a horizontal plane toward and awayfrom their respective cylinders, the position of one of said inkingmechanisms being rotatively adjustable.

2. In a multi-color rotaryweb printing press, an impression cylinder,change form cylinders, radially adjustable bearings therefor, and changeform cylinder inking mechanisms movable in a horizontal plane toward andaway from their respective cylinders, the position of one of said inkingmechanisms being rotatively adjustable.

3. In a multi-color rotary web printing press, an impression cylinder,change form cylinders, adjustable bearings therefor, change formcylinder inking mechanisms, and a sectional stand therefor movable ina'horizontal plane toward and away from the change form cylinders, oneof the stand sections being rotatively adjustable.

4. In a multi-color rotary web printing press, an impression cylinder,change form cylinders, radially adjustable bearings therefor, changeform cylinder inking mechanisms, and a sectional stand therefor movablein a horizontal plane toward and away from the change form cylinders,one of the stand sections being rotatively adjustable.

5. In a multi-color rotary web printing press, an impression cylinder,change form cylinders, adjustable bearings therefor, change formcylinder inking mechanisms, and a sectional stand therefor movable in ahorizontal plane toward and away from the change form cylinders, saidstand comprising a main section and an auxiliary section pivoted theretoto rotatably adjust the position of the inking mechanism carriedthereby.

6. In a multi-color rotary web printing press, an impression cylinder,change form cylinders, radially adjustable bearin s therefor, changeform cylinder inking mec anisms, and a sectional stand therefor movablein a horizontal plane toward and away from the change form cylinders,said stand comprising a main section and an auxiliary section pivotedthereto to rotatably adjust the position of the inking mechanism carriedthereby.

7. In a three color rotary web printing press, an impression cylinder,three change form cylinders, adjustable bearings therefor, change 'formcylinder inking mechanisms, and a sectional stand therefor movable in ahorizontal plane toward and away from the change form cylinders, saidstand comprising a main section carrying two of the inking mechanismsand an auxiliary section pivoted to the main section and carrying thethird inking mechanism, whereby the position of the third inkingmechanism may be rotatively adjusted.

8. In a three color rotary web printing press, an impression cylinder,three change form cylinders, radially adjustable bearings therefor,change form cylinder inking mechanisms, and a sectional stand thereformovable in a horizontal plane toward and away from the'change formcylinders, said stand comprising a main section carrying two of theinking mechanisms and an auxiliary section pivoted to the main sectionand carryin the third inking mechanism, whereby the osition of the thirdinking mechanism may e rotatively adjusted.

9. In a three color rotary web printing press, an impression cylinder,three change form cylinders, adjustable bearings therefor, two of saidchange form cylinders being located at equal distances above and below ahorizontal plane passing through the axis of rotation of the impressioncylinder, and three inking mechanisms for the chan e form cylinders,movable in a horizontal p ane toward and away from their respectivechange form cylinders the position of one of said inking mechanismsbeing rotatively adjustable.

10. In a three color rotary web printing press, an impresslon cylmder,three change form cylinders, radiall adjustable bearings therefor, twoof said 0 ange form cylinders being located at equal distances above andbelow a horizontal plane passing through the axis of rotation of theimpression cylinder,

-6th ay of November A. D. 1928.

. BARBER.

and three inking mechanisms for the change form cylinders, movable in ahorizontal plane toward and away from their respective change formcylinders, the position of one of said inking mechanisms'beingrotatively adjustable.

In testimony, that I claim the foregoing as m invention, I have signedmy name this HOWARD M.

